# Calculation Practice vs HayaiLearn

The clearest difference is review sentiment: HayaiLearn at 50% against Calculation Practice's 0%. HayaiLearn also leads on price (Free vs $0.99) and update cadence (every 10 days vs every 17 months). Calculation Practice's advantage is in-app purchases (none vs 6). On ads and device support there is nothing between them.

HayaiLearn is free to download; Calculation Practice costs $0.99 up front. HayaiLearn sells 6 in-app purchases, starting at $12.99 per month. Calculation Practice asks for nothing beyond the download.

Calculation Practice ships an update every 17 months, HayaiLearn every 10 days. The most recent releases landed on June 5, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Calculation Practice | HayaiLearn |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.3 (29 ratings)](https://appshunter.io/ios/app/hayailearn/id6743055074/reviews)** |
| Number of ratings | — | **29** |
| Positive reviews | 0.0% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 10 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 106 MB |
| Requires iOS | 18.2 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [Hideomi Sato](https://appshunter.io/developer/601939713) | [Fallen Cloud Studios LLC](https://appshunter.io/developer/1801046973) |

## What reviewers say

### Calculation Practice

[App page](https://appshunter.io/ios/app/calculation-practice/id601939710)

Master fundamental math skills with this interactive flashcard app. Choose the correct answer from multiple choices for randomly generated calculations. Track your progress with accuracy and time metrics after each session.

**Highlights:** Randomized calculation problems, Multiple-choice answers, Auditory feedback for correct answers, Progress tracking (correct answers, time), Daily practice reinforcement

**Features:** macOS Compatibility

**In-app purchases:** none


### HayaiLearn

[App page](https://appshunter.io/ios/app/hayailearn/id6743055074)

This platform uses AI-powered video immersion to help you learn Japanese. It provides translations, explanations, and vocabulary breakdowns for YouTube videos, making learning fun and natural.

**Highlights:** AI subtitle translations and explanations, Interactive word meaning lookup, 10,000+ pre-processed YouTube videos, SRS video review and sentence mining, Shadowing for pronunciation practice, Word frequency lists and stats tracking

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $12.99 | per month |
| Pro Access | $12.99 | per month |
| Platinum | $24.99 | per month |
| Pro Access | $99.99 | per year |
| Platinum | $184.99 | per year |
| Pro Access | $249.99 | one-time |


## Frequently asked questions

### Is Calculation Practice free?

Calculation Practice costs $0.99, with no in-app purchases.

### Is HayaiLearn free?

HayaiLearn is free to download, with in-app purchases available.

### Do Calculation Practice or HayaiLearn have ads?

Neither Calculation Practice nor HayaiLearn shows ads.

### Which is updated more often, Calculation Practice or HayaiLearn?

Calculation Practice ships an update every 17 months, and HayaiLearn every 10 days. Most recently, Calculation Practice was updated on June 5, 2026 and HayaiLearn on September 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*